Knowledge

Reliable UV printing on rigid promotional signs starts with substrate identification, contamination control and a documented adhesion test. “Rigid signage” is an application category, not a material specification. PVC, acrylic, polycarbonate, coated metal, corrugated plastic and composite boards can require...

The correct white-ink and varnish structure for rigid and promotional signage depends on substrate color, opacity, texture, viewing direction and the required finish. Industrial production should begin with the simplest candidate—color only, white under color, or a verified varnish build—then...